Mapas de la Vía Láctea

Muddy Creek in Edgewater, Maryland is the site of a major makeover. The land around the stream has worn down. Find out what caused Muddy Creek to erode, and the many steps involved in saving it. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process, from the initial research and brainstorming sessions, through the design and testing ...

INDICE Mi carné deportivo La ropa deportiva Partes de mi cuerpo Mis manos El esqueleto La respiración ¿Dónde estoy? Mis habilidades Cuido mi salud Me gustan los deportes Educación vial Me expreso con mi cuerpo

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

A través del Islam es una obra fundamental de la literatura de viajes, así como un clásico de las letras árabes. Es un relato en primera persona de las aventuras y desventuras, placeres y sinsabores, del tangerino Ibn en su dilatadísimo viaje desde Marruecos hasta China en pleno siglo xiv. Al regresar a su Marruecos natal, tras un periplo de veintitrés años, Ibn compiló sus recuerdos de los países islámicos visitados con la ayuda de un granadino, para satisfacer el encargo del sultán merení de Fez. Con la finalidad de proporcionar al sultán informaciones difíciles de adquirir en ...

This book looks at natural structures such as plants, animal bodies, mountains, caves, rock formations, and icebergs, the materials from which they are made, and their colors, shapes, and textures. It shows structures made by animals, such as beehives and bird nests. This wonderful book with amazing photos will encourage young readers to notice colors and shapes in nature and how they relate to the purpose of structures.